Given the following information about two spherical tanks that are connected, calculate the work required to fill both t

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Given the following information about two spherical tanks that
are connected, calculate the work required to fill both tanks from
the ground.
The first tank: Radius = 1m
The second tank: Radius = 0.5m
The first tank is on the ground and the second tank is 2m
above the top of the first tank. The tanks are connected by a
tube that is of negligible width. The tube goes through the
top of the first tank and the bottom of the second tank. If ρ >
0 is the density (in kg/m^3) of the liquid in both tanks,
calculate the work required to deliver the liquid to fill both
tanks from the ground.